Satellite images reveal the movement of Hurricane Sandy on Sunday 28 October as the storm heads towards America's east coast.
The animation released by NASA uses technology known as super rapid scan and gives forecasters a clear idea of where Sandy is heading.
The time-lapse footage is made up of hundreds of images, with one taken every minute between 7.15am and 6.30pm.
The National Oceanic and Atmospheric Administration has said it could be the largest storm to hit the US in history.
Sandy has been created by an Arctic jet stream wrapping itself around a tropical storm. Weather watchers have dubbed it "Frankenstorm" because it is so unusual.